Crystallography 101 is a basic web tutorial serving as a first contact site for students interested in protein crystallography. It complements my 800-page textbook Biomolecular Crystallography: Principles, Practice and Applications to Structural Biology, which I recommend to serious disciples for further study. After visits, many users have contributed substantially to the improvement of the web content by either finding mistakes or suggesting new chapters or programs. Many interesting and stimulating discussions have come from students submitting answers to the quizzes. More thought questions will appear in the supplement section for the book.
Any criticism as well as wishes for additions you may have are always welcome. I particularly enjoyed all the unsolicited positive response the users have provided. The kind responses are very helpful, in particular for my fund raising activities. If you have something nice to say, please let us know, in particular if you use crystallography 101 or Biomolecular Crystallography in a class or course. With your help, it will be easier to get funding to expand and maintain the tutorial and make it more professional and interactive. So far, I have written all the pages myself with few exceptions, and in spare time I power-pointed all of the sketches in the tutorial text. If someone wants to contribute, please let me know. I also write the CGI programs myself, and they are quite primitive due to my limited knowledge and resources.
Again, thanks to all who have contributed in one way or the other, and I wish you fun with 101.